The National Weather Service has issued a flash flood watch for the eastern half of the county, where thunderstorms are brewing. The advisory warns that "monsoonal moisture in southeast flow aloft will continue today. With sufficient daytime heating and instability, this will feed slow-moving thunderstorms with the moisture needed to cause very large rainfall amounts and flash flooding. Recently burned areas in the mountains and foothills will be particularly susceptible to flooding and debris flows."

About 40 lightning strikes hit East County on Friday.

Saturday will go down as the 13th straight day that the temperature was above the seasonal average. And the humidity has frequently been high enough to make it difficult to sleep. Today's high at Lindbergh Field in San Diego will be 83, or five degrees above normal. Forecasters say the temperature will drop to 81 by the time the Chargers host the Cowboys in a pre-season football game at The Q at 6 p.m. (Humidity level: 55 percent.)

Seaside: Ocean temps are 69-73 degrees. Solspot.com says the surf will be in 3' range in South County and 3' to 5' range in North County. Rip current danger: High in San Diego and Orange counties. There will be a 5.45 foot high tide at 10:42 a.m. The sun will set at 7:29 p.m.